The ExCo4 high-efficiency open-hole logging suite is an integration of all conventional openhole measurements into one tool string. The suite consists of: Resistivity Log: Dual Induction Laterolog 8 (DIL8) Applications This high-efficiency conventional open-hole logging suite is ideal for standard formation evaluation. Multiple conveyance methods may be employed for different well orientations:   Shallow, medium & deep resistivities  SP (spontaneous potential)   Wireline conveyance Pipe conveyance E-coil conveyance for horizontal Features & Benefits Nuclear Logs: Compensated Neutron (CNLT)  Neutron porosity  Reduced job cost by minimizing rig time Litho-Density (LDLT)  Bulk density with PE  Density porosity and X  High strength environments  Highest standard of data quality with reliable, stable and precise measurements  Customized deliverables requirements caliper Acoustic Log: Digital Array Sonic (DAS)  ∆t compressional  Transit time—continuous Auxiliary Tools: Temperature, Tensions and Mud Resistivity (TTMR) XY Calipers Full directional survey on same run A variety of optional services can be integrated with the ExCo4, including but not limited to:  Single‐run opera on  provides all conven onal open‐hole measurements.  High and standard resolu on passes can be logged simultaneously.    HRDL: High-Resolution Dual Laterolog NGRS: Natural Gamma Ray Spectral MCMT: Microspherical Focused Microlog and XY Caliper combined Caliper / Continuous Inclinometer tool for adverse to logging meet any Operation The tool suite is highly combinable to deliver any data set requested. This integration allows multiple logs in one run, thereby minimizing rig time during logging operations. General Specifications Length to top sensor (GR) 18.8m Diameter (max diameter) 90 mm (125 mm) [3.54” (5”)] Weight 460 kg Max Temperature 175⁰C Max Pressure 140 MPa [20 kpsi] Open-hole Logging ExCo4 Quad Combo